Double Eccentric Butterfly Valve
Specifications
Double Eccentric Butterfly ValveDouble eccentric butterfly valve
Stainless acid-proof steel, corrosive proof, high temperature resistance. New abrasion-resista
Tripe Eccentric Butterfly Valve
Three-dimensional incline taper airproof seat 900 openinger cleaning
Triple eccentric, Bereled wedge disc small friction and torque, self-clean
Manual, electric, pneumatic and gear operation etc.
A216WCB, A351 CF8, A351CF8M
A217LCB, A351CF3, A351CF3M
Technical Requirements
1. Design and manufacture comply to MSS SP 67-1997
2. Inspect and test comply to API 598
3. Face to face dimension complies to BSS5155
4. Flanges comply to API 605
5. Pressure-temperature grade complies to ANSI B6.34.
| No. | Part Name | Material | ||||
| A216 WCB | A217 LCB | A351 CF8 | A351 CF8M | A351 CF3M | ||
| 1 | Nether cover | A105 | A105 | A182 F304 | A182 F316 | A182 F316L |
| 2 | Bearing | A182 F6a | A182 F304 | A182 F304 | A182 F316 | A182 F316L |
| 3 | Wrash | F304+Flexible graphite | ||||
| 4 | Body | A216 WCB | A217 LCB | A351 CF8 | A351 CF8M | A351 CF3M |
| 5 | Nut | A194 2H | A194 4 | A194 8 | A194 8M | A194 8M |
| 6 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M | A193 B8M |
| 7 | Gland | A182 F410 | A182 F304 | A182 F304 | A182 F316 | A182 F316L |
| 12 | Key | A194 2H | ||||
| 13 | Gear action | Nodular cast iron | ||||
| 14 | Yoke | A216 WCB | A351 CF8 | |||
| 15 | Shaft packing | Flexible graphite | ||||
| 16 | Bearing | B148/SF-1/17-7PH | ||||
| 17 | Tailpiece | A216 WCB | A217 LCB | A351 CF8 | A351 CF8M | A351 CF3M |
| 18 | Seal seat | Flexible graphite | PTFE | |||
| 20 | Pin | A276 316 | A276 316 | A276 316 | A276 316 | A276 316 |
| 21 | Butterfly board | A351 CF8M | A351 CF8M | A351 CF8M | A351 CF8M | A351 CF3M |
| 22 | Shaft | A276 316 | A276 316 | A276 316 | A276 316 | A276 316L |
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